Package slicetype implements data types and utilities to describe Bigslice types: Slices, Frames, and Tasks all carry slicetype.Types.



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    func Assignable

    func Assignable(in, out Type) bool

      Assignable reports whether column type in can be assigned to out.

      func Columns

      func Columns(typ Type) []reflect.Type

        Columns returns a slice of column types from the provided type.

        func Signature

        func Signature(arg, ret Type) string

          Signature returns a Go function signature for a function that takes the provided arguments and returns the provided values.

          func String

          func String(typ Type) string


          type Type

          type Type interface {
          	// NumOut returns the number of columns.
          	NumOut() int
          	// Out returns the data type of the ith column.
          	Out(i int) reflect.Type
          	// Prefix returns the number of columns in the type
          	// which are considered the type's prefix. A type's
          	// prefix is the set of columns which are considered
          	// the type's key columns for operations like reduce.
          	Prefix() int

            A Type is the type of a set of columns.

            func Append

            func Append(t1, t2 Type) Type

            func Concat

            func Concat(types ...Type) Type

            func New

            func New(types ...reflect.Type) Type

              New returns a new Type using the provided column types.

              func Slice

              func Slice(t Type, i, j int) Type



                • prefixes are lost when slicing a type.

                Source Files